FOR ALL SUBMISSIONS:
The LCA should be carried out on construction drawings, but projects do not need to be completed (constructed) at the time of application. Applicants are encouraged to reference the National Research Council National Whole-Building Life Cycle Assessment Practitioner's Guide for information on conducting a wbLCA.
If embodied carbon impacts associated with biogenic carbon are calculated, the results shall be reported separately and shall not be included in demonstration of the embodied carbon total and intensity values.
LARGE BUILDINGS:
For Part 3 buildings, a whole building LCA (wbLCA) is required and results must be reported using the following requirements:
- Include all structural and building envelope components
- Consider life cycle phases A1-C4
- Assume a 60-year life-span
SMALL BUILDINGS:
Part 9 projects may either complete a wbLCA, or teams may calculate the material use intensity (life cycle phases A1-A3) using BEAM, or other comparable method. There will be an opportunity to describe the inclusions and methodology.
RETROFITS & REUSE:
Please provide the best information available. There will be an opportunity to describe the inclusions and methodology.
DEFINITIONS:
Gross Floor Area (GFA); The measure of fully-enclosed spaces to the outside face of enclosing walls, without deductions in area for interior walls, columns, and floor openings such as stairwells, elevators, ducts, or other openings, but excludes attached garages.
Built Floor Area (BFA); The gross floor area with the addition of the gross floor area of attached garages (refer to definitions of gross floor area and attached garages). Note that the floor area attributed to balconies and terraces is excluded from this definition.
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